shim gitlab variables

.forgejo/workflows/action.yaml

@@ -8,11 +8,14 @@ jobs:
     runs-on: x86_64
     container:
       image: alpinelinux/apkbuild-lint-tools:latest
+    env:
+      CI_PROJECT_DIR: ${{ github.workspace }}
+      CI_DEBUG_BUILD: ${{ runner.debug }}
+      CI_MERGE_REQUEST_PROJECT_URL: ${{ github.server.url }}/${{ github.repository }}
+      CI_MERGE_REQUEST_BRANCH_NAME: ${{ github.base.ref }}
     steps:
       - run: doas apk add nodejs git
       - uses: actions/checkout@v4
         with:
           fetch-depth: 500
-      - run: |
-          export PATH="$PATH:$GITHUB_WORKSPACE/.gitlab/bin"
-          lint
+      - run: lint